for the past 2 months i had been experiencing a problem with my droid 4 where anytime I accessed an app or the internet (aka utilizing the data plan), my blue 4G/LTE would turn white and Id have no data access. Only the ability to text or make a phone call was available. I had done numerous troubleshooting methods of power cycling, turning airplane mode on and off, force closing apps, etc. Nothing had worked. I finally decided to go down to the verizon wireless store to get a solution after not finding anything on here (besides putting my phone in 3G only).
so heres the solution!! I went to my vzw store yday and talked to my rep who is also a friend of mine. its NOT the verizon network, i repeat, its NOT VERIZON. the phones (4g phones) came out with a small batch these phones where they had this little glitch in them. He took my phone, powered off my wireless network from the phone and also disconnected my number from Verizon's system. he reconnected my number as well as my phones wireless settings, rebooted the phone and POOF, it works. its been a little under 24 hours and havent had the problem since. So if you're experiencing this problem, go to the verizon store and explain to them that they need to disconnect you from the network both via phone and their system and then reconnect it. If they try to tell you otherwise, theyre just giving you pushback to not do their jobs!
hopefully this helps you!